Fine lines, wrinkles, and sagging skin are all inescapable signs of aging. These are the visible signs of collagen loss. Fortunately, we don’t have to accept these lines and wrinkles without question! There are a number of treatments that are aimed at increasing the production of collagen in our skin. One of these popular treatments is radiofrequency skin tightening. Lets look at what it is and how long it lasts.